Header for fuel-economizers.



PATENTBD 001223, 19061 N R U B K G A L B H A HEADER FOR FUELBGONOMIZBRS.

APPLICATION FILED AUG.*18, 1903.

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Inven'br W t M3393.- I I I v l. Afi 's. V y a "ARTHUR H. BLACKBURN, orIMATTEAWAN, NEW YORK.

HEADER FOR FUEL-ECQNOMIZERS.

Specification of Letters Patent.

' Patented Oct. 23, 1906..

lnnlication fi ed August 15,1903. Serial No. 169.607-

To (tZZ whom it .may concern: ,Be 1t known that I, ARTHUR H. BLACK-BURN, a subject of the King of Great Britain,

- residing at Matteawan, in the county of Dutchess and State of NewYork, have invented certain new and useful Improvements in Headers forFuel-Economizers, of which the following is a specification, referencebemg had to the drawings accompanying and forming a part of the same.

My invention relates to the chambers or headers to which the pipesof afuel-economizer are connected, particularly those used.

at the upper end of the tubes.

The object of my invention is to provide such a header which willproducea more satisfactory circulation of water through. the system andwhich shall possess other features of advantage, as will appearhereinafter.

To these ends the invention consists of the novel features andcombinations hereinafter described, and more particularly set forth inthe claim.

Referring now to the drawings, Figure 1 is an end view of afuel-economizer in which my improved header is employed. Fig. 2 is alongitudinal section of the header. Fig. 3 is a plan view of a-closurefor one of the openings in the top of the header through which theclosures for the other opening may be removed. Fig. 4 is a plan view ofthe header.

Inthe construction shown in Fig. 1 the pipes 1 are secured at theirlower ends to a header 2 and are provided with suitable scraping devices3, encircling the pipes, the scrapers being reciprocated by the rod andchain 4 or other suitable device to remove accumulations of soot fromthe pipes. At their upper end the tubes are connected toa top header 5;As made in accordance with my invention this header consists of a longchamber, usually of substantiallyrectangular cross-section and wideenough to accommodate a single row of pipes, as shown in Fig. l. Thelatter are secured to the header .in openings, 6 in the bottom of thesame, usually slightly tapered in contour. The pipes may be'made to fitby hydraulic pressure or by expanding them in. The latter method is tobe preferred when steel tubes are 'to be used in a system. for feedingairinstead of water, while the former is generally employed in the caseof cast-iron pipes.

In the upper side of the header, immediately above each of thepipe-holes 6, is an opening, as 7. These openings taperor flareinwardly, as shown. They are closed by internal lids of the kindillustrated in Fig. 3. One (or more) of the holes, as 8, however, isoval instead ofround, so that when it is desired to remove the cover ofone of the same it is simply driven inward, given a h alfturn, andremoved through the same open-.

ing. The closures for the other holes are introduced into the headerthrough the oval opening and carried along .to their proper,

position inside the header, when theymaybe readily fitted in place. Toremove the same, they are driven. inward and taken out through the ovalopening. These-openings constitute hand-holes by which access may be hadto the interior'of the header for cleaning or other purposes, and beingdirectly in line with the pipe-holes one or more of the pipes may beremoved from the system without disturbing the others by withdrawing Iit through the registered hand-hole. This feature is of great advantagein making repairs, &c.

In Fig. 1, 9 indicates a pipe extending along the economizer at rightangles to the plane of the figure to connect the various sections of thestructure. Heretofore this pipe has been connected to the headerdirectly over the first vertical pipe through the hand-hole; but thisconstruction. has been found to possess In the first place in the oldconstruction just described if it is desired to remove the first pipe itis necessary to remove the pipe 9. This not only entails considerablelabor, but

also results in frequent breakage of the castiron parts. Furthermore,the water in passing up the first pipe, which is, as before same beforedescribed at'the inlet to the pipe 9. A header made as shown in thedrawings, however, obviates these diflic'ulties. entirely. For suchpurpose I extend the chamber beyond the first pipe a suitable dis tance,and in the extension 10 is located the connection 11 for the pipe 9. thespace on the header immediately above the first pipe free for ahand-hole, the same certain disadvantages which the present invent] ondoes not possess.

While the remaining a This leaves IIC -at right angles into theextension 10.

as in the case of the other tubes. When the water flowing through thefirst pipe reaches the upper end of the same, there is not, as in theold construction, a straight passage directly into the conduit 9. On theother hand, the liquid at that point must floiv 1 therefore meets thesame resistance in discharging from this particular pipe as does thewater in the other tubes. formity of flow and the convenience of theother features above described makes my header greatly superior to theold forms.

The construction herein specifically shown and described is of courseonly one of the many forms which may embody my invention, and Itherefore do not consider myself limited to the structure here shown;but

What I claim is In a fuel-economizer, a header consisting of anelongated chamber having in one side a This unilongitudinal row ofapertures to receive the economizer-pipes, a plurality ofinwardlyflaring circular apertures in the opposite wall in register withthe pipe-apertures, tapered closures fitting the flaring apertures, oneor more inwardly-flaring oval apertures in the same wall as the otherflaring apertures, said oval apertures being provided with taperedclosures and having their longer diameters reater than the diameter ofthe circular ap rtures, whereby the closures for the latter may beintroduced into the chamber through the oval apertures, said chamberhaving at one end an extension beyond the two series of apertures, forconnection with another section of the econoinizer; as set forth.

ARTHUR H. BLACKBURN. Witnesses ERNEsT DAVIES, M. H. KEATING.

